Custom space & time sky map

I'm preparing a collection of sky maps personalised to a specific time and location. The idea is get the maximum of each mentra without compromising another : Precision, Clarity, Design.

I went through many testings, experimenting with colors legend to clarify the map, didn't work out. I try to get more precise by implementing the shade of the galaxy, the design was too messy after. I finally came down (as often) to simplify, to cut the extra to get the essence.